According to example configurations as described herein, an on-line conference management application receives an indication of multiple participants that attend an on-line collaboration meeting. The conference management system stores identities of content shared amongst the multiple participants during the on-line collaboration meeting. Based on identities of the multiple participants and shared content, the conference management system generates an access policy. Subsequent to termination of the on-line collaboration meeting, the conference management system utilizes the access policy to prevent unauthorized access to the shared content. For example, the conference management system can receive a request from a user to access the shared content. The management system checks to determine whether the user was a participant at the on-line collaboration meeting. Responsive to detecting that the user attended the on-line collaboration meeting as specified by the access policy, the management system can provide access to the particular document to the user.